Scholarly record
ASSESMENT OF DOLOMITE WALL FAILURES IN THE 6TH GOLBINI JAJARM BAUXITE MINE BY USING SMR CLASSIFICATION SYSTEM
Abstract
The stability problems in 73 meters height of dolomite wall cause to starting an empirical estimation for early step of slope optimization. In this paper, three rock classification systems (RQD, RMR and SMR) are utilized for assessment of dolomite wall failures in the 6th Golbini Jajarm bauxite mine. The SMR (slope mass rating) geo-mechanics classification system, is adaptation of RMR (rock mass rating) for slopes. In first step, joint study and site investigation carried out for RQD (rock quality designation) and RMR determination. The results of these studies show four major discontinuities that contains three joint sets and one bedding plane. Second step was laboratory tests and determining groundwater condition that can be used to obtain the RMR parameters values. The UCS (unconfined compressive strength of intact rock material) of dolomite specimens is determined with uniaxial compressive strength laboratory tests. Finally, the classification of rock mass, description of classes, probability of failures and suggested support methods are determined according SMR values in two critical sections, southern west and southern east walls with total height of 155 meters, and two failure conditions, plane and toppling failure. Final results describe the hazard of big planar or soil-like failures, in both critical sections. It seems that Re-excavation on current 73 meters slopes must be applied, for stability of 155 meters height of pit limit southern wall.
Publication details
ReferencesPending
Structured references will appear here after the reference import pass. The count is preserved now so the scholarly record is not incomplete.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.